Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TL55D85C found under Filter Band Pass by Morgan Advanced Ceramics Inc. The National Stock Number assigned to this part is 5915007634870, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TL55D85C.